Effect of the "cough technique" on cryotherapy freezing temperature.

Objective: To assess the impact of the cough technique on the tip temperature reached in a cryotherapy device commonly used to treat precancerous cervical lesions.

Methods: During February to March 2009, bench testing was conducted in Peru on 3 Wallach LL100 cryotherapy units using locally obtained carbon dioxide as the refrigerant. The temperature at the cryo tip was measured continuously with a thermocouple.

Effect of cough technique and cryogen gas on temperatures achieved during simulated cryotherapy.

Background: Cryotherapy is often used to treat cervical precancer in developing countries. There are different methods and cryogen gases used for cryotherapy, including the freeze-flush-freeze (cough) technique employed to minimize gas blockage. However, there is limited information to compare their effectiveness.